US 11,686,853 B2
Multipath mitigation for multiband GNSS receiver
Jordan Cookman, San Jose, CA (US); Krishnaranjan Rao, Sunnyvale, CA (US); and Sandeep Padmanabhan, Milpitas, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 27, 2022, as Appl. No. 17/809,265.
Application 17/809,265 is a continuation of application No. 17/081,973, filed on Oct. 27, 2020, granted, now 11,378,697.
Claims priority of provisional application 62/928,204, filed on Oct. 30, 2019.
Prior Publication US 2022/0326390 A1, Oct. 13, 2022
Int. Cl. G01S 19/22 (2010.01); G01S 19/42 (2010.01); G01S 19/24 (2010.01); G01S 19/32 (2010.01)
CPC G01S 19/22 (2013.01) [G01S 19/24 (2013.01); G01S 19/428 (2013.01); G01S 19/32 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method of position determination at a mobile device, the method comprising:
obtaining a set of satellite signal measurements through measuring, for each satellite in a first plurality of satellites, a first signal from the satellite in a first frequency band and a second signal from the satellite in a second frequency band, wherein the first plurality of satellites includes at least a first satellite, a second satellite, and a third satellite;
determining that at least one measurement in the set of satellite signal measurements is impaired, based on a difference between a measurement of the first signal from a particular satellite and a measurement of the second signal from the particular satellite, wherein determining that the at least one measurement in the set of satellite signal measurements is impaired comprises determining that the difference exceeds one or more thresholds, and wherein the one or more thresholds include a first threshold associated with the first signal from the particular satellite and a second threshold associated with the second signal from the particular satellite; and
determining a position of the mobile device based on non-impaired measurements in the set of satellite signal measurements.